CN215793416U - Protection device convenient to lift - Google Patents
Protection device convenient to lift Download PDFInfo
- Publication number
- CN215793416U CN215793416U CN202121435617.8U CN202121435617U CN215793416U CN 215793416 U CN215793416 U CN 215793416U CN 202121435617 U CN202121435617 U CN 202121435617U CN 215793416 U CN215793416 U CN 215793416U
- Authority
- CN
- China
- Prior art keywords
- rod
- protection
- driving
- seat
- guardrail
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The application relates to the field of protective devices, in particular to a protective device convenient to lift, which comprises a guardrail and an adjusting component for adjusting the height of the guardrail; the guardrail comprises a protective rod, a plurality of supporting rods for supporting the protective rod and a plurality of positioning seats for positioning the positions of the supporting rods; one end of the supporting rod is hinged with the protective rod, and the other end of the supporting rod is hinged with the positioning seat; the adjusting assembly comprises an adjusting rod, a rotating seat and a rotating shaft for rotating the adjusting rod, one end of the adjusting rod is hinged with the protective rod, and the rotating shaft is arranged between one end of the adjusting rod and the other end of the adjusting rod; the protection device also comprises a driving assembly for driving the adjusting rod to rotate; the driving assembly drives the adjusting rod to rotate, and the adjusting rod rotates to drive the guardrail to rise or fall; this application has the other alright effect of adjusting the guardrail height of tank wagon in the external world.
Description
Technical Field
The application relates to the field of protective devices, in particular to a protective device convenient to lift.
Background
Tank trucks are frequent passengers on roads, and the transportation of various liquid, powder, liquefied gas and other articles depends on the tank trucks; the top of tank car is provided with the guardrail, when maintaining the top of tank car, and the guardrail plays the effect that the condition that reduces maintainer and drop from the top of tank car takes place.
When the maintenance personnel are positioned at the top of the tank car, the guardrail is lifted; when the maintenance personnel leave the top of the tank car, the guardrail is descended; however, in the related art, the maintenance personnel is required to climb up the roof of the tank car and then pull up the guardrail, and in the process of pulling up the guardrail, the maintenance personnel still fall off from the top of the tank car.
With respect to the related art in the above, the inventors have considered that there is a case where maintenance personnel fall from the top of a tank car when climbing the top of the tank car to pull up a guardrail.
SUMMERY OF THE UTILITY MODEL
In order to reduce the condition emergence that maintainer dropped from the top of groove tank car, this application provides a protector that conveniently goes up and down.
The application provides a protector that conveniently goes up and down adopts following technical scheme:
a protection device convenient to lift comprises a guardrail, wherein the guardrail comprises a protection rod, a plurality of support rods and a plurality of positioning seats; the positioning seat is arranged on one side of an external tank car, one end of the supporting rod is hinged with the positioning seat, and the other end of the supporting rod is hinged with the protection rod; the protection device comprises an adjusting assembly, the adjusting assembly comprises an adjusting rod, a rotating shaft and a rotating seat, and the rotating seat is arranged on the outer side of the external tank car; one end of the adjusting rod is hinged with the protective rod, and the rotating shaft is arranged in the middle of the adjusting rod; the protection device also comprises a driving assembly for driving the adjusting rod to rotate.
By adopting the technical scheme, when the guardrail needs to be lifted, the driving assembly drives the adjusting rod to rotate, the adjusting rod rotates around the rotating shaft, one end of the adjusting rod drives the protective rod to move, the protective rod moves to drive the supporting rod to rotate around the positioning seat until the guardrail is completely lifted; the driving assembly drives the adjusting rod to rotate reversely when the guardrail is lifted, and the guardrail descends through the transmission mode; the guardrail height adjusting device has the advantages that the guardrail height can be adjusted beside the tank car, so that maintenance personnel can adjust the height of the guardrail at a position with lower height, and the effect of reducing the falling condition of the maintenance personnel from the top of the tank car is achieved.
Optionally, the protection device comprises a stabilizing assembly, the stabilizing assembly comprises a gas spring and a fixed seat for positioning the gas spring, and the fixed seat is arranged on one side of the external tank car; one end of the gas spring is hinged with the fixed seat, and the other end of the gas spring is hinged with the protection rod.
By adopting the technical scheme, when the guardrail is lifted, the protection rod moves to drive the air spring to stretch, and when the guardrail is completely lifted, the air spring is fixed in a stretched state, so that the function of providing supporting force for the protection rod is achieved, and the automatic descending of the guardrail is reduced; when the guardrail descends, the guard bar moves reversely when rising the guardrail relatively, the support bar rotates reversely to drive the air spring to contract, when the guardrail descends completely, the air spring is fixed in the contracted state, the function of providing tension for the guard bar is achieved, and the condition that the guardrail rises automatically is reduced.
Optionally, the driving assembly comprises a driving rack, a driving gear, a gear shaft and a rotating component for rotating the gear shaft; the driving gear is meshed with the driving rack, and the gear shaft penetrates through the driving gear; the driving rack is provided with a driving block, the other end of the adjusting rod is provided with a sliding channel, and the driving block is connected with the adjusting rod in a sliding mode through the sliding channel; the driving assembly further comprises a mounting seat for mounting the gear shaft and the driving rack.
By adopting the technical scheme, the rotating component drives the gear shaft to rotate, the gear shaft rotates to drive the driving gear to rotate, the driving gear rotates to drive the driving rack to move, and the driving rack drives the driving block to slide; the driving block pushes the adjusting rod to rotate; through the transmission relation, the function of pushing the adjusting rod to rotate is achieved.
Optionally, the mounting seat is provided with a sliding rail and a gear seat; the gear shaft is arranged on the gear seat; the driving rack is connected with the mounting seat in a sliding mode through a sliding rail.
By adopting the technical scheme, the gear shaft rotates on the gear seat to drive the rack to slide on the sliding rail; the arrangement of the mounting seat plays a role in limiting the moving direction of the gear shaft and the driving rack.
Optionally, the rotating part comprises a connecting strip and a handle, one end of the connecting strip is connected with the gear shaft, and the other end of the connecting strip is connected with the handle.
Through adopting above-mentioned technical scheme, rotate the handle, the handle rotates and drives the connecting strip and rotate, and the connecting strip rotates and drives gear shaft and rotate, has played the effect of drive gear shaft.
Optionally, the protection device includes a protection assembly, the protection assembly includes a protection rope and a plurality of protection blocks, and the protection blocks are disposed on the support rod; the protection block is provided with a through hole for the protection rope to penetrate through.
By adopting the technical scheme, when the guardrail rises, the protection rope is positioned between the protection rod and the top of the tank car, the gap of the guardrail is reduced by the protection rope, and the condition that maintenance personnel fall from the top of the tank car is further reduced.
Optionally, the protection device includes a positioning assembly, and the positioning assembly includes a fixing hole disposed on the driving gear, a plurality of positioning holes disposed on the gear seat, and a bolt for penetrating through the fixing hole and the positioning holes.
By adopting the technical scheme, after the rotating part is used, the fixing hole is aligned with the positioning hole, and then the bolt penetrates through the positioning hole and the fixing hole; at the moment, the bolt blocks the driving gear from rotating, and the situation that the guardrail automatically rises or falls is reduced.
Optionally, the guard bar is provided with an elastic block.
Through adopting above-mentioned technical scheme, when the guardrail descends, the circumstances that elastic block and positioning seat butt have reduced fender rod and positioning seat direct collision takes place, has reached the effect that the circumstances that reduces fender rod, positioning seat wearing and tearing takes place.
In summary, the present application includes at least one of the following beneficial technical effects:
1. when the guardrail needs to be lifted, the driving gear shaft of the rotating part drives the driving gear to rotate, the driving gear rotates to drive the driving rack to move, so that the driving block arranged on the driving rack slides and pushes the other end of the adjusting rod, the connecting rod transmission is realized through the matching of the adjusting rod, the rotating shaft, the protective rod, the supporting rod and the positioning seat, and the rotating action of the adjusting rod is converted into the lifting action of the protective rod; until the guardrail is completely lifted; when the guardrail is lifted, the driving gear shaft of the rotating part drives the driving gear to rotate reversely, and the guardrail descends through the transmission mode; the function of adjusting the height of the guardrail beside the tank car is achieved, so that the height of the guardrail can be adjusted by a maintainer at a position with a lower height, and the effect of reducing the falling of the maintainer from the top of the tank car is achieved;
2. the arrangement of the protection rope reduces the gap of the guardrail, and further reduces the occurrence of the condition that maintenance personnel fall from the top of an external tank car;
3. through setting up the elastic block, when the guardrail descends, elastic block and positioning seat butt have reduced fender rod and the condition emergence of positioning seat direct collision, have reached the effect that the condition that reduces fender rod, positioning seat wearing and tearing takes place.
Drawings
Fig. 1 is a schematic view of the overall structure of embodiment 1 of the present application.
Fig. 2 is an enlarged schematic view at fig. 1A.
Fig. 3 is a schematic view of a partial explosion structure at the adjusting assembly and the driving assembly according to embodiment 1 of the present application.
FIG. 4 is a partial side view of the drive assembly of example 2 of the present application
Description of reference numerals: 1. a guardrail; 11. a guard bar; 111. an elastic block; 12. a support bar; 13. positioning seats; 2. an adjustment assembly; 21. adjusting a rod; 211. a sliding track; 22. a rotating shaft; 23. a rotating seat; 3. a drive assembly; 31. a drive rack; 311. a drive block; 32. a slide rail; 33. a drive gear; 34. a gear shaft; 35. a gear seat; 36. a rotating member; 361. a connecting strip; 362. a handle; 363. rotating the motor; 364. a motor shaft; 365. a placing table; 366. a coupling; 4. a stabilizing assembly; 41. a gas spring; 42. a fixed seat; 5. a protection component; 51. a protection block; 52. a protective rope; 6. a positioning assembly; 61. a fixing hole; 62. positioning holes; 63. and (4) a bolt.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
The embodiment of the application discloses protector that conveniently goes up and down.
Example 1.
Referring to fig. 1, a protection device convenient for lifting comprises a guardrail 1, wherein the guardrail 1 comprises a protection rod 11, a plurality of support rods 12 for supporting the protection rod 11 and a plurality of positioning seats 13 for positioning the positions of the support rods 12; the positioning seat 13 is arranged at one side of an external tank car, one end of the supporting rod 12 is hinged with the positioning seat 13, and the other end of the supporting rod 12 is hinged with the protective rod 11; the protection bar 11 is provided with an elastic block 111, and specifically, the elastic block 111 is an elastic block 111 made of rubber.
Specifically, the other end of the support rod 12 is hinged with the protection rod 11 through a hinge seat; when the guard bar 11 moves, the support bar 12 rotates along with the movement of the guard bar 11, so that the guardrail 1 is lifted or lowered; through setting up elastic block 111, when guardrail 1 descends, elastic block 111 and positioning seat 13 butt have reduced fender rod 11 and 13 direct collision's of positioning seat circumstances and have taken place, have reached the effect that the circumstances that reduces fender rod 11, 13 wearing and tearing of positioning seat took place.
Referring to fig. 1, the protection device comprises a stabilizing assembly 4, the stabilizing assembly 4 comprises a gas spring 41 and a fixed seat 42 for positioning the gas spring 41, and the fixed seat 42 is arranged on one side of the external tank car; one end of the gas spring 41 is hinged to the fixed seat 42, and specifically, the other end of the gas spring 41 is hinged to the guard bar 11 through the hinged seat.
Specifically, the gas spring 41 is a compression gas spring 41; when the guardrail 1 is lifted, the protection rod 11 moves to drive the gas spring 41 to stretch, and when the guardrail 1 is completely lifted, the gas spring 41 is fixed in a stretching state, so that the function of providing supporting force for the protection rod 11 is achieved, and the condition that the guardrail 1 automatically descends is reduced; when descending guardrail 1, relative when rising guardrail 1 reverse movement of fender rod 11, fender rod 11 reverse movement drives air spring 41 shrink, and when guardrail 1 descends completely, air spring 41 is fixed in the state of shrink, has played the effect of providing the pulling force for fender rod 11, has reduced the automatic circumstances emergence that rises of guardrail 1.
Referring to fig. 1 and 2, the protection device comprises a protection component 5, the protection component 5 comprises a protection rope 52 and a plurality of protection blocks 51, and the protection blocks 51 are arranged on the support rod 12; the protection block 51 is provided with a through hole for the protection rope 52 to pass through; specifically, one end of the protection rope 52 is fixed to the protection block 51 closest to one end of the outside tank car, and the other end of the protection rope 52 is fixed to the protection block 51 closest to the other end of the outside tank car.
Specifically, the protection rope 52 is a steel wire rope; when the guardrail 1 rises, the protection rope 52 is positioned between the protection rod 11 and the top of the external tank car, the gap of the guardrail 1 is reduced due to the arrangement of the protection rope 52, and the condition that maintenance personnel fall from the top of the tank car is further reduced.
Referring to fig. 1 and 3, the protection device comprises an adjusting assembly 2 for adjusting the height of the guardrail 1, wherein the adjusting assembly 2 comprises an adjusting rod 21, a rotating shaft 22 and a rotating seat 23, and the rotating seat 23 is installed at one side of an external tank car; one end of the adjusting lever 21 is hinged to the guard bar 11, and the rotating shaft 22 is disposed at a position in the middle of the adjusting lever 21.
Referring to fig. 1 and 3, the guard device further includes a driving assembly 3 for driving the adjusting lever 21 to rotate, the driving assembly 3 includes a driving rack 31, a driving gear 33, a gear shaft 34 and a rotating member 36, the driving rack 31 is engaged with the driving gear 33; the gear shaft 34 penetrates through the driving gear 31; the rotating member 36 includes a connecting bar 361 and a handle 362, one end of the connecting bar 361 is connected to the gear shaft 34, and the other end of the connecting bar 361 is connected to the handle 362.
Referring to fig. 1 and 3, the driving assembly 3 further includes a mounting seat provided with a gear seat 35 and a slide rail 32; the driving rack 31 is provided with a driving block 311, and the other end of the adjusting rod 21 is provided with a sliding channel 211; the gear shaft 34 is mounted on the gear seat 35; the driving rack 31 is connected with the mounting seat in a sliding way through a sliding rail 32.
When the guardrail 1 needs to be lifted, the handle 362 is rotated, the handle 362 rotates to drive the connecting strip 361 to rotate, the connecting strip 361 rotates to drive the gear shaft 34 to rotate, the gear shaft 34 rotates to drive the driving gear 33 to rotate, and the driving gear 33 rotates to drive the driving rack 31 to slide; the driving rack 31 slides to drive the driving block 311 to slide, the driving block 311 slides to push the other end of the adjusting rod 21, the adjusting rod 21 rotates around the rotating shaft 22, one end of the adjusting rod 21 drives the protection rod 11 to move, and the protection rod 11 moves to drive the supporting rod 12 to rotate around the positioning seat 13 until the guardrail 1 is completely lifted.
When the guardrail 1 is descended, the handle 362 reversely rotates relative to the handle 362 reversely rotates when the guardrail 1 is ascended, the handle 362 reversely rotates to drive the connecting bar 361 to reversely rotate, the connecting bar 361 reversely rotates to drive the gear shaft 34 to reversely rotate, the gear shaft 34 reversely rotates to drive the driving gear 33 to reversely rotate, and the driving gear 33 reversely rotates to drive the driving rack 31 to reversely slide; the driving rack 31 slides reversely to drive the driving block 311 to slide reversely, the driving block 311 slides reversely to push the other end of the adjusting rod 21, the adjusting rod 21 rotates reversely around the rotating shaft 22, one end of the adjusting rod 21 drives the protection rod 11 to move reversely, and the protection rod 11 moves reversely to drive the supporting rod 12 to rotate reversely around the positioning seat 13 until the guardrail 1 descends completely; the function of adjusting the height of the guardrail 1 beside the tank car is achieved, so that the height of the guardrail 1 can be adjusted by maintenance personnel at a position with a lower height, and the effect of reducing the occurrence of the condition that the maintenance personnel fall from the top of the tank car is achieved.
Referring to fig. 3, the protecting device includes a positioning assembly 6, and the positioning assembly 6 includes a fixing hole 61 disposed on the driving gear 33, a plurality of positioning holes 62 disposed on the gear seat 35, and a bolt 63 for penetrating through the fixing hole 61 and the positioning holes 62.
After the rotating part 36 is used, the fixing hole 61 is aligned with the positioning hole 62, and then the bolt 63 penetrates through the positioning hole 62 and the fixing hole 61; the latch 63 blocks the rotation of the driving gear 33 at this time, thereby reducing the occurrence of the automatic lifting or lowering of the guard rail 1.
Referring to fig. 1, in particular, the protection devices are symmetrically arranged at two sides of the outside tank car.
The protection device that the symmetry set up makes the focus of external tank wagon balanced to make the two sides at the top of external tank wagon all surrounded, further reduced the condition that maintainer dropped from the top of external tank wagon and taken place.
The implementation principle of the protection device convenient to lift in embodiment 1 of the application is as follows: the handle 362 is rotated, the handle 362 rotates to drive the connecting bar 361 to rotate, the connecting bar 361 rotates to drive the gear shaft 34 to rotate, the gear shaft 34 rotates to drive the driving gear 33 to rotate, and the driving gear 33 rotates to drive the driving rack 31 to slide; the driving rack 31 slides to drive the driving block 311 to slide, the driving block 311 slides to push the other end of the adjusting rod 21, the adjusting rod 21 rotates around the rotating shaft 22, one end of the adjusting rod 21 drives the protection rod 11 to move, and the protection rod 11 moves to drive the supporting rod 12 to rotate around the positioning seat 13 until the guardrail 1 is completely lifted; at this time, the protection rope 52 is positioned between the protection rod 11 and the top of the external tank car, so that the gap of the guardrail 1 is reduced;
when the guardrail 1 is descended, the handle 362 reversely rotates relative to the handle 362 reversely rotates when the guardrail 1 is ascended, the handle 362 reversely rotates to drive the connecting bar 361 to reversely rotate, the connecting bar 361 reversely rotates to drive the gear shaft 34 to reversely rotate, the gear shaft 34 reversely rotates to drive the driving gear 33 to reversely rotate, and the driving gear 33 reversely rotates to drive the driving rack 31 to reversely slide; the driving rack 31 slides reversely to drive the driving block 311 to slide reversely, the driving block 311 slides reversely to push the other end of the adjusting rod 21, the adjusting rod 21 rotates reversely around the rotating shaft 22, one end of the adjusting rod 21 drives the protection rod 11 to move reversely, and the protection rod 11 moves reversely to drive the supporting rod 12 to rotate reversely around the positioning seat 13 until the guardrail 1 descends completely; the height of the guardrail 1 can be adjusted by the tank car, so that the height of the guardrail 1 can be adjusted by a maintainer at a position with a lower height, after the rotating part 36 is used, the fixing hole 61 is aligned with the positioning hole 62, and then the bolt 63 penetrates through the positioning hole 62 and the fixing hole 61; the latch 63 blocks the rotation of the driving gear 33 at this time, thereby reducing the occurrence of the automatic lifting or lowering of the guard rail 1.
Example 2.
Referring to fig. 4, the embodiment of the present application differs from embodiment 1 in that: the rotating part 36 includes a rotating motor 363, a placing table 365 for placing the rotating motor 363; the rotating motor 363 is provided with a motor shaft 364, and the motor shaft 364 is connected with the gear shaft 34 through a coupler 366; the rotating component 36 also includes a controller that is communicatively coupled to an input of the rotating motor 363.
The implementation principle of the embodiment 2 is as follows: the controller outputs a signal to the rotating motor 363, the rotating motor 363 drives the motor shaft 364 to rotate, and the motor shaft 364 rotates to drive the gear shaft 34 to rotate; functions as a drive gear 33 shaft; the controller adopts a conventional PLC, a singlechip or an embedded microprocessor.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. A protection device convenient to lift comprises a guardrail (1), wherein the guardrail (1) comprises a protection rod (11), a plurality of support rods (12) and a plurality of positioning seats (13); the positioning seat (13) is arranged on one side of an external tank car, one end of the supporting rod (12) is hinged with the positioning seat (13), and the other end of the supporting rod (12) is hinged with the protection rod (11); the method is characterized in that: the protection device comprises an adjusting component (2), the adjusting component (2) comprises an adjusting rod (21), a rotating shaft (22) and a rotating seat (23), and the rotating seat (23) is installed on the outer side of the external tank car; one end of the adjusting rod (21) is hinged with the protective rod (11), and the rotating shaft (22) is arranged in the middle of the adjusting rod (21); the protection device also comprises a driving component (3) for driving the adjusting rod (21) to rotate.
2. The protection device convenient to lift and lower as claimed in claim 1, wherein: the protection device comprises a stabilizing assembly (4), the stabilizing assembly (4) comprises a gas spring (41) and a fixing seat (42) for positioning the gas spring (41), and the fixing seat (42) is arranged on one side of an external tank car; one end of the gas spring (41) is hinged with the fixed seat (42), and the other end of the gas spring (41) is hinged with the protection rod (11).
3. The protection device convenient to lift and lower as claimed in claim 1, wherein: the driving assembly (3) comprises a driving rack (31), a driving gear (33), a gear shaft (34) and a rotating component (36) for enabling the gear shaft (34) to rotate; the driving gear (33) is meshed with the driving rack (31), and the gear shaft (34) penetrates through the driving gear (33); the driving rack (31) is provided with a driving block (311), the other end of the adjusting rod (21) is provided with a sliding channel (211), and the driving block (311) is connected with the adjusting rod (21) in a sliding mode through the sliding channel (211); the driving assembly (3) further comprises a mounting seat for mounting the gear shaft (34) and the driving rack (31).
4. The protection device convenient to lift and lower as claimed in claim 3, wherein: the mounting seat is provided with a slide rail (32) and a gear seat (35); the gear shaft (34) is mounted on a gear seat (35); the driving rack (31) is connected with the mounting seat in a sliding mode through a sliding rail (32).
5. The protection device convenient to lift and lower as claimed in claim 3, wherein: the rotating part (36) comprises a connecting strip (361) and a handle (362), one end of the connecting strip (361) is connected with the gear shaft (34), and the other end of the connecting strip (361) is connected with the handle (362).
6. The protection device convenient to lift and lower as claimed in claim 1, wherein: the protection device comprises a protection component (5), the protection component (5) comprises a protection rope (52) and a plurality of protection blocks (51), and the protection blocks (51) are arranged on the support rod (12); the protection block (51) is provided with a through hole for the protection rope (52) to penetrate through.
7. The protection device convenient to lift and lower as claimed in claim 4, wherein: the protection device comprises a positioning component (6), wherein the positioning component (6) comprises a fixing hole (61) arranged on the driving gear (33), a plurality of positioning holes (62) arranged on the gear seat (35) and a plug pin (63) used for penetrating through the fixing hole (61) and the positioning holes (62).
8. The protection device convenient to lift and lower as claimed in claim 1, wherein: the protection rod (11) is provided with an elastic block (111).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121435617.8U CN215793416U (en) | 2021-06-25 | 2021-06-25 | Protection device convenient to lift |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121435617.8U CN215793416U (en) | 2021-06-25 | 2021-06-25 | Protection device convenient to lift |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215793416U true CN215793416U (en) | 2022-02-11 |
Family
ID=80178731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121435617.8U Active CN215793416U (en) | 2021-06-25 | 2021-06-25 | Protection device convenient to lift |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215793416U (en) |
-
2021
- 2021-06-25 CN CN202121435617.8U patent/CN215793416U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201428473Y (en) | Inclined drift rope pressure catcher | |
| CN215793416U (en) | Protection device convenient to lift | |
| CN214402982U (en) | Electric power iron tower convenient to overhaul | |
| CN217048429U (en) | Adjustable protection device installed on tank car | |
| CN2263035Y (en) | Inclined drifts winch interlock normal closed automatic block device | |
| CN112174018A (en) | Lifting repairing device for automobile repair factory | |
| KR100495521B1 (en) | lighting tower | |
| CN111994826B (en) | Lifting device for auto repair | |
| CN220434166U (en) | Maintenance platform with protective structure | |
| CN217102974U (en) | Climbing operation vehicle for outdoor maintenance | |
| CN215796546U (en) | Automatic lifting wheel chock mechanism | |
| CN219885620U (en) | Lifting operation platform with extension structure | |
| CN216889904U (en) | Novel screw rod, gear rack and synchronous pulley belt combined type lifting mechanism | |
| CN217612577U (en) | Power transmission and transformation overhauls and is used for climbing safety belt that wire pole can be locking | |
| AU2019410026A1 (en) | Fall-prevention device for motor-driven rack and pinion elevator | |
| CN219754437U (en) | Intelligent shielding door structure of rail transit platform | |
| CN219910620U (en) | Anti-falling crawling ladder | |
| CN112744738B (en) | Two-column lifting machine capable of preventing falling | |
| CN217025246U (en) | Ascending device for maintaining power equipment | |
| CN215439554U (en) | Building construction elevator | |
| CN215160795U (en) | Fitment is with supplementary elevating gear | |
| CN220664778U (en) | Hydraulic automobile lifting device | |
| CN221141028U (en) | Lifting device for mine electromechanical installation | |
| CN220314996U (en) | Car stopping device for coal mine | |
| CN221194187U (en) | Scaffold for interior decoration engineering |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |